Abstract
Given an action of a finite group G on a topological space, we can define its index. The G-index roughly measures a size of the given G-space. We explore connections between the G-index theory and topological dynamics. For a fixed-point free dynamical system, we study the ℤp-index of the set of p-periodic points. We find that its growth is at most linear in p. As an application, we construct a free dynamical system which does not have the marker property. This solves a problem which has been open for several years.
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Dedicated to Professor Benjamin Weiss on the occasion of his 80th birthday
M. Tsukamoto was supported by JSPS KAKENHI JP18K03275.
M. Tsutaya was supported by JSPS KAKENHI JP19K14535.
M. Yoshinaga was supported by JSPS KAKENHI JP18H01115.
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Tsukamoto, M., Tsutaya, M. & Yoshinaga, M. G-index, topological dynamics and the marker property. Isr. J. Math. 251, 737–764 (2022). https://doi.org/10.1007/s11856-022-2433-0
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DOI: https://doi.org/10.1007/s11856-022-2433-0